Power loss and unburned fuel

[scottyboy]

I have a 11 hp honda pressure washer, I experienced some power loss and a pitch change in the sound of the machine while operating. There is unburned fuel because a small flame is firing out the muffler periodically. Any suggestions??? Thanks, Scotty, [help]

 

[RussJohnson]

Sounds like it may be time for a valve job.

 

[scottyboy]

That's exactly what my brother and myself thought. After taking off the OHV cover and check things out, valves seem ok. It appears to be a neglected spark arrester. A soaking in solvent and a good wire brushing seems to have done the trick. I guess when they say...every 100 hours, they mean it. Having bought the machine second hand and never having done it my self means I have no history of the spark arrester maintenance. Will keep an eye on this in the future.

 

[scottyboy]

I'd like to say thanks for the suggestions. It was as simple as cleaning the spark arrester and cleaning out the carb. Many thanks from a relative newbee. I appreciate the lack of mockery at my limited knowledge but I'm learnin', slowly but surely. Thanks in part to this site. Best wishes all.